CN210793201U - Dynamic detection platform for running part of power-concentrated motor train unit - Google Patents
Dynamic detection platform for running part of power-concentrated motor train unit Download PDFInfo
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- CN210793201U CN210793201U CN201921563583.3U CN201921563583U CN210793201U CN 210793201 U CN210793201 U CN 210793201U CN 201921563583 U CN201921563583 U CN 201921563583U CN 210793201 U CN210793201 U CN 210793201U
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Abstract
The utility model discloses a power is concentrated EMUs and is walked line dynamic detection platform of portion, its characterized in that: the method is used for dynamically detecting the in-situ jacking of the running gear under the condition that the power-concentrated motor train unit is not in the un-edited state; comprises a track bridge (4), a detection trolley (1), a pit (2) and a detection system (3); the two detection trolleys (1) synchronously walk on respective detection trolley tracks (5); the detection trolley (1) comprises a rail wheel (6), a rail wheel driving device and a jacking mechanism (8); the jacking mechanism (8) is used for jacking the wheel to be tested to be separated from the track bridge (4); the rail wheel (6) is used for contacting with the wheel to be tested and driving the wheel to be tested to rotate under the driving of the rail wheel driving device; the detection system (3) is used for collecting detection data from a rotating bearing to be detected of the wheel to be detected. The utility model discloses under the state of not disassembling, carry out the reinspection after early failure diagnosis and the 6A report to the police to axle box bearing, armful axle box bearing, motor bearing etc. of moving, accuse, the portion of walking of dragging.
Description
Technical Field
The utility model belongs to railway vehicle walks capable portion of the railway vehicle and overhauls the field, concretely relates to power is concentrated EMUs and is walked capable portion of the railway vehicle and move dynamic detection platform.
Background
At present, railway passenger trains are mainly divided into motor train units (power decentralized type) and general-speed passenger trains. The motor train unit and the common-speed passenger train are applied for many years, the maintenance technical standard system and related facilities are more perfect, and powerful guarantee is provided for the safe transportation of railway passengers. In order to meet different market demands, in the serial development of the Chinese standard motor train unit with 'Fuxing' number, the standard motor train unit forms a standard serial product with the speed grade of CR400/300/200, wherein the standard motor train unit with the CR200 grade gradually replaces a common passenger bus.
The power-concentrated motor train unit is used as a series of 'renaming' motor train units, is used for upgrading and upgrading speed-increasing passenger cars, plays an important role in promoting structural reform of a railway passenger supply side, improving transportation organization efficiency and improving passenger travel conditions, and simultaneously forms a new passenger flow increasing point. Compared with the traditional locomotive and vehicle general speed train, the power-concentrated motor train unit adopts an operation mode without decoding, reduces the operation time of decoding, changing ends and the like, and adopts a locomotive vehicle fixed grouping and integrated maintenance mode.
The running gear is of great importance to rail trains and is one of the most important components for normal operation of the trains. The axle box bearing, the gear box bearing and the motor bearing of the power vehicle transmit the rotation output by the motor in the power transmission process. Fatigue damage to these bearings can be detrimental to train safety.
At present, the detection operation of the running gear of the power-concentrated motor train unit faces a plurality of difficulties:
1. the traditional detection in the whole passenger station can only detect the running part of the vehicle, the corresponding motor train application station can only detect the running part of the locomotive, and the simultaneous detection of the locomotive and the running part of the vehicle cannot be realized.
2. In the traditional running gear detection, a traction motor large line needs to be disassembled, the structure of the running gear of the motor train unit is complex, the number of parts for warehousing inspection is large, the inspection is easy to miss, the maintenance process is complicated, and the in-situ dynamic detection without disassembly cannot be realized.
3. According to the requirements of the harmony locomotive overhaul regulations, the bearings of the running part need to be dynamically detected in the overhaul processes of C3. The traditional top wheel detection scheme adopts a wheel set jacking mode to detect, at the moment, a 180-degree phase difference exists between a stress surface of an axle box bearing and a stress surface when a train runs, a detection result is different from data obtained by an online stress cambered surface and is data of a non-stress surface (a lower cambered surface), tracking research finds that the coincidence rate of top wheel detection and online 6A alarm is less than 14%, and the problem is fully concerned and known by the industry. In addition, the top wheel detection scheme still needs to disassemble traction converter three-phase power supply cable, wastes time and energy, and has damage to the motor vehicle.
SUMMERY OF THE UTILITY MODEL
At least one in defect or improvement demand more than prior art, the utility model provides a power concentration EMUs walk dynamic inspection platform for accomplish 160 kilometers power concentration EMUs power car C3, the axle box bearing of regulation in the C4 repaiies the journey, gear shaft bearing, dynamic inspection under the motor bearing is at the normal position not disconnected form, can effectually shorten the manual work degree of difficulty, the activity duration, reduce the accessory cost, improve detection efficiency, can improve the accuracy of bearing test result, make bearing test result accord with actual conditions, bearing atress condition is the same with the vehicle nature atress condition when guaranteeing the test.
In order to achieve the above object, according to one aspect of the present invention, there is provided a dynamic detection platform for a running gear of a power-concentrated motor train unit, which is used for dynamically detecting the in-situ jacking of the running gear of the power-concentrated motor train unit without being disassembled;
comprises a track bridge, a detection trolley, a pit and a detection system;
the track bridge is arranged above the pit and used for bearing and positioning a vehicle;
parallel detection trolley tracks are arranged at the bottom of the pit and on two sides of the track bridge;
the two detection trolleys synchronously walk on respective detection trolley tracks;
the detection trolley comprises a rail wheel, a rail wheel driving device and a jacking mechanism; the jacking mechanism is used for jacking the wheel to be detected to separate from the track bridge; the rail wheel is used for contacting with a wheel to be detected and driving the wheel to be detected to rotate under the driving of the rail wheel driving device;
the detection system is carried on the detection trolley and used for collecting detection data from a bearing to be detected of the rotating wheel to be detected.
Preferably, the track bridge allows vehicles to pass through in two directions when the dynamic detection platform of the running gear of the power-concentrated motor train unit is not used for detection.
Preferably, the maximum bearing axle weight of the track bridge is 300kN, and the maximum allowable vehicle speed is 30 m/min.
Preferably, the detection trolley further comprises a detection trolley roller and a detection trolley roller driving device;
the detection trolley roller is driven by the detection trolley roller driving device to travel on the detection trolley track.
Preferably, noise reduction materials are adopted on the rim part of the rail wheel which is in contact with the tread of the wheel pair to be tested.
Preferably, the detection system comprises an acceleration sensor and a bearing vibration analysis platform.
The above-described preferred features may be combined with each other as long as they do not conflict with each other.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, has following beneficial effect:
1. the utility model discloses a power concentration EMUs walk capable portion dynamic detection platform can carry out normal position dynamic detection to axle box bearing, traction motor bearing, gear shaft bearing etc. of 160 kilometers motor cars, rechecks the online warning bearing, can effectually shorten the manual work degree of difficulty, activity duration, reduce accessory cost, improve detection efficiency.
2. The utility model discloses a power is concentrated EMUs and is walked line dynamic detection platform adopts rail wheel back drive technique, need not to disassemble the traction motor main line during the detection.
3. The utility model discloses a power concentration EMUs walk capable portion dynamic verification platform owing to adopted the rail wheel drive mode, axle box bearing has kept identical stress state with the online operation operating mode in the testing process, and the testing result that reachs is accurate reliable.
4. The utility model discloses a power is concentrated EMUs and is walked line portion dynamic inspection platform, the rim part of rail wheel has adopted the material of making an uproar that falls, makes rail wheel and wheel pair tread "flexibility" contact and accomplish power transmission, makes sensor system accomplish data acquisition under the condition of "quiet", detects the ability and has improved about an order of magnitude under "hard" contact condition.
5. The utility model discloses a power is concentrated EMUs and is walked line portion dynamic testing platform has introduced SFK bearing fault diagnosis technique, has formed one set of bearing fault diagnosis system who is adapted to railway vehicles (locomotive, power car) characteristics completely.
Drawings
FIG. 1 is a schematic left view of a dynamic inspection table for a running gear of a power-concentrated motor train unit according to an embodiment of the present invention;
FIG. 2 is a schematic top view of a dynamic inspection table for a running gear of a power-concentrated motor train unit according to an embodiment of the present invention;
FIG. 3 is a schematic front view of a dynamic inspection table for a traveling part of a power-concentrated motor train unit according to an embodiment of the present invention.
The dimensions in the figure are in mm.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. The present invention will be described in further detail with reference to the following embodiments.
As a preferred embodiment of the present invention, as shown in fig. 1-3, the present invention provides a dynamic inspection platform for a running gear of a power-concentrated motor train unit, which belongs to a configuration device of a locomotive service section or a locomotive overhaul base, and is used for dynamically inspecting the in-situ jacking of the running gear of the power-concentrated motor train unit without being disassembled; mainly comprises a track bridge 4, a detection trolley 1, a pit 2 and a detection system 3. The dynamic detection platform of the running part of the power-concentrated motor train unit adopts a pit installation form. The detection of all the bearings of the driving device of the walking part can be completed by pulling the vehicle in place once.
The track bridge 4 is arranged above the pit 2 and used for bearing and positioning vehicles; parallel detection trolley tracks 5 are arranged at the bottom of the pit 2 and on two sides of the track bridge 4; the two detection trolleys 1 synchronously walk on respective detection trolley tracks 5 and can automatically align objects to be detected; the detection trolley 1 comprises a rail wheel 6, a rail wheel driving device and a jacking mechanism 8; the jacking mechanism 8 is used for jacking the wheel to be detected to separate from the track bridge 4; the rail wheel 6 is used for contacting with a wheel to be tested and driving the wheel to be tested to rotate under the driving of the rail wheel driving device;
the detection system 3 is carried on the detection trolley 1 and is used for collecting detection data from a bearing to be detected of the rotating wheel to be detected.
The track bridge 4 is a large steel structure component arranged in a pit, is used for bearing and positioning vehicles in the detection process, is an important component of the equipment, and allows the vehicles to pass in two directions when the dynamic detection platform of the running part of the power-concentrated motor train unit is not used for detection.
Preferably, the maximum bearing axle weight of the track bridge 4 is 300kN, and the maximum allowable vehicle speed is 30 m/min.
Preferably, the detection trolley 1 further comprises a detection trolley roller 7 and a detection trolley roller driving device;
the detection trolley roller 7 is driven by the detection trolley roller driving device to travel on the detection trolley track 5.
Preferably, noise reduction material is used in the rim portion of the rail wheel 6 that is in contact with the tread of the wheel set to be tested. Further, the detection rotating speed is 300r/min, and the bearing detection pressure is 7.5 kN.
Preferably, the detection system 3 comprises an SKF acceleration sensor and an SKF ptitude analysis bearing vibration analysis platform.
The utility model discloses under the form of not disassembling, to moving, accuse, drag axle box bearing of walking portion, hold axle box bearing, motor bearing etc. and carry out the reinspection after early failure diagnosis and the 6A report to the police, have following advantage:
1. the utility model discloses a power concentration EMUs walk capable portion dynamic detection platform can carry out normal position dynamic detection to axle box bearing, traction motor bearing, gear shaft bearing etc. of 160 kilometers motor cars, rechecks the online warning bearing, can effectually shorten the manual work degree of difficulty, activity duration, reduce accessory cost, improve detection efficiency.
2. The utility model discloses a power is concentrated EMUs and is walked line dynamic detection platform adopts rail wheel back drive technique, need not to disassemble the traction motor main line during the detection.
3. The utility model discloses a power concentration EMUs walk capable portion dynamic verification platform owing to adopted the rail wheel drive mode, axle box bearing has kept identical stress state with the online operation operating mode in the testing process, and the testing result that reachs is accurate reliable.
4. The utility model discloses a power is concentrated EMUs and is walked line portion dynamic inspection platform, the rim part of rail wheel has adopted the material of making an uproar that falls, makes rail wheel and wheel pair tread "flexibility" contact and accomplish power transmission, makes sensor system accomplish data acquisition under the condition of "quiet", detects the ability and has improved about an order of magnitude under "hard" contact condition.
5. The utility model discloses a power is concentrated EMUs and is walked line portion dynamic testing platform has introduced SFK bearing fault diagnosis technique, has formed one set of bearing fault diagnosis system who is adapted to railway vehicles (locomotive, power car) characteristics completely.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A dynamic detection platform for a running part of a power-concentrated motor train unit is characterized in that: the method is used for dynamically detecting the in-situ jacking of the running gear under the condition that the power-concentrated motor train unit is not in the un-edited state;
comprises a track bridge (4), a detection trolley (1), a pit (2) and a detection system (3);
the track bridge (4) is arranged above the pit (2) and is used for bearing and positioning a vehicle;
parallel detection trolley tracks (5) are arranged at the bottom of the pit (2) and on two sides of the track bridge (4);
the two detection trolleys (1) synchronously walk on respective detection trolley tracks (5);
the detection trolley (1) comprises a rail wheel (6), a rail wheel driving device and a jacking mechanism (8); the jacking mechanism (8) is used for jacking the wheel to be tested to separate from the track bridge (4); the rail wheel (6) is used for contacting with a wheel to be tested and driving the wheel to be tested to rotate under the driving of the rail wheel driving device;
the detection system (3) is carried on the detection trolley (1) and is used for collecting detection data from a bearing to be detected of the rotating wheel to be detected.
2. The dynamic detection platform for the running gear of the power-concentrated motor train unit according to claim 1, characterized in that:
and the track bridge (4) allows the vehicles to pass through in two directions when the dynamic detection platform of the running part of the power-concentrated motor train unit is not used for detection.
3. The dynamic detection platform for the running gear of the power-concentrated motor train unit according to claim 1, characterized in that:
the maximum bearing axle weight of the track bridge (4) is 300kN, and the maximum allowable vehicle speed is 30 m/min.
4. The dynamic detection platform for the running gear of the power-concentrated motor train unit according to claim 1, characterized in that:
the detection trolley (1) also comprises a detection trolley roller (7) and a detection trolley roller driving device;
the detection trolley roller (7) is driven by the detection trolley roller driving device to travel on the detection trolley track (5).
5. The dynamic detection platform for the running gear of the power-concentrated motor train unit according to claim 1, characterized in that:
and noise reduction materials are adopted for the rim part of the track wheel (6) which is in contact with the tread of the wheel set to be tested.
6. The dynamic detection platform for the running gear of the power-concentrated motor train unit according to claim 1, characterized in that:
the detection system (3) comprises an acceleration sensor and a bearing vibration analysis platform.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921563583.3U CN210793201U (en) | 2019-09-19 | 2019-09-19 | Dynamic detection platform for running part of power-concentrated motor train unit |
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| CN201921563583.3U CN210793201U (en) | 2019-09-19 | 2019-09-19 | Dynamic detection platform for running part of power-concentrated motor train unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110626381A (en) * | 2019-09-19 | 2019-12-31 | 中铁第四勘察设计院集团有限公司 | Dynamic detection platform for running part of power-concentrated motor train unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110626381A (en) * | 2019-09-19 | 2019-12-31 | 中铁第四勘察设计院集团有限公司 | Dynamic detection platform for running part of power-concentrated motor train unit |
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